| 一种高精度的微机交流采样算法 |
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| 引用本文： | 孙开放,游志成,孙淑信.一种高精度的微机交流采样算法[J].华中科技大学学报(自然科学版),1997(5). |
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| 作者姓名： | 孙开放 游志成 孙淑信 |
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| 作者单位： | 华中理工大学电力工程系 |
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| 摘 要： | 从理论上讲，全周波傅氏算法具有很高的精度．但实际运用时，其精度都会受到采样定时误差和信号频率偏移的影响．针对这一问题对全周波傅氏算法进行了改进，其效果十分显著
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| 关 键 词： | 交流采样 傅氏算法 定时误差 频率偏移 |
A Highly Accurate AC Sampling Algorithm |
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| Sun Kaifang Dept. of Power Eng.,HUST,Wuhan ,China. You Zhicheng Sun Shuxin.A Highly Accurate AC Sampling Algorithm[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1997(5). |
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| Authors: | Sun Kaifang Dept of Power Eng HUST Wuhan China You Zhicheng Sun Shuxin |
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| Institution: | Sun Kaifang Dept. of Power Eng.,HUST,Wuhan 430074,China. You Zhicheng Sun Shuxin |
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| Abstract: | The complete period Fourier AC sampling algorithm is now widely used. Theoretically, it is of very high accuracy. As it is, however, it is affected by the computer timing error and the AC signal frequency drift in practice. An improved algorithm developed by the authors is proposed which is capable of compensating for the timing error and the signal frequency drift detected with a measuring circuit. This algorithm is found to be more accurate with little increase in the calculating workload. |
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| Keywords: | AC sampling Fourier algorithm timing error frequency drift |
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